Toner & Drum Problems; If Replace Toner, Cannot Delete "Replace Toner; Cannot Detect Toner; Toner Low - Brother HL-2250DN Service Manual

4.5 Toner & Drum Problems

4.5.1 If replace toner, cannot delete "Replace Toner".

User Check
• Install a new toner cartridge certainly.
Step
New toner actuator catching on
1
some position
Harness connection failure of Panel
2
PCB
3 Panel PCB failure
4 Main PCB failure

4.5.2 Cannot detect toner

Identification failure for a new toner cartridge
Step
Power off or front cover opened
1 while detecting a new toner
cartridge.
2 New toner actuator loose
3 New toner sensor failure

4.5.3 Toner low

Toner is low
User Check
• Prepare a new toner cartridge.
Step
1 Main PCB failure

4.5.4 Replace toner

User Check
• Replace the toner cartridge with a new one.
• Press the [Go] button seven times to clear the stop mode*, and shift to the continue
mode.
Step
1 Main PCB failure
* This mode is appeared the "REPLACE TONER" message in the state of leaved a few toner to
improve a print quality. Compared with this, the continue mode is that the printer continues
printing until the toner life end.
Cause
Cause
Cause
Cause
2-42
Remedy
Correct catching of the new toner
actuator.
Reconnect the harness of the Panel PCB.
Replace the panel PCB ASSY.
Replace the main PCB ASSY.
Remedy
Reset the developing bias voltage and
develop roller counter.
Re-assemble the new toner actuator
Replace the panel PCB ASSY.
Remedy
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
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